'01 dodge 1500 engine swap

So I have an 01 dodge 1500 5.9l magnum runs great but I want to swap out a 360 with 408 stroker when this engine goes. I'm wanting around 400 hp out of the new engine. What kind of modification or trouble will I run into adding that much power?

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.